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USB-TO-GPIO interface

Achmed Giesler
Prodigy 90 points
Other Parts Discussed in Thread: BQWIZARD, BQ78PL114

I have received my module, thanks to a supportive TI staff member in the UK.

The next step is to try and get it going. I was hoping that the BQwizard software would work, but no luck. I connected up GND, SMBclock and SMBdata, no pullups. But the unit does not want to communicatre with my own BQ78PL114 board. The board works ok, I verfied comms with the EV2300 module. I can receive word and block data from the BQ78PL114.

Any suggestions? Was the USB-TO-GPIO module not supposed to be the module for the BQ78PL114?

 

 

 

 

  • 0
    TI__Intellectual 1940 points

    The USB-TO-GPIO adapter needs to be reprogrammed to work with the bqWizard and the bq78PL114. 

    Download the bqWizard install file from the product page.

    Follow the reprogramming directions in the installation directory.

    This should work.

  • 0 in reply to Jim M15252
    Prodigy 90 points

    Thanks for your help. The problem is that I cannot upload the software.

    The help fie states the following:

    Run bqWizard

    5) To load new firmware

       - Go to Bootstrap Loader dialog box: Main menu --> Utilities --> Bootstrap Loader
       - Click on "Select File" button

    The problem is, BQWizard does not have a utilities selection. I am using Version 2.5.7. When I run it, I get an error message: LAN is not built.

    I managed to update the firmware using USB SAA GUI.exe program, but that made no difference to BQWizard.

    So I am still making no progress and very frustrated. Any other suggestions would be appreciated.

     

     

     

  • 0 in reply to Achmed Giesler
    TI__Intellectual 1940 points

    In the bottom left corner of the status bar inside the bqWizard should appear "2.0.17."  This will tell you that the USB-TO-GPIO firmware is correctly loaded.

    Connecting a fewer number of cells to the bq78PL114 than it expects is one possible reason why you are getting the "LAN is not built."  Do a ctrl-r to read all parameters and then see the parameter called "Expected number of cells."  This should match your series cell count.  For the default firmware (FW 4452) the cell count is 8.  If you have upgraded to FW 5000, the default cell count is 3.  Connect an 8S pack either with cells or simulating resistors and a power supply and see if you still get the error.

    The .tmap configuration file is used to set the cell count.  For FW 4452 see app note SLUA495a http://focus.ti.com/lit/an/slua495a/slua495a.pdf

    Once you have comms and are seeing cell voltages correctly, upgrade to FW5000. 

    This will again require loading of a .tmap file with the correct cell count.

    For FW5000 see the new app note SLUA542 http://focus.ti.com/lit/an/slua542/slua542.pdf 

     

  • 0 in reply to Jim M15252
    Prodigy 10 points

    I get an error when i try to do "Do a ctrl-r to read all parameters and then see the parameter called "Expected number of cells."  This should match your series cell count. "

     I hooked up 3 batteries in series to the pack terminals, is there any other connections i need to make ?

     

    Thanks,

    - samir

  • 0 in reply to Jim M15252
    Prodigy 20 points

    TI help wrote:

    {start snip}

    "In the bottom left corner of the status bar inside the bqWizard should appear "2.0.17."  This will tell you that the USB-TO-GPIO firmwe is correctly loaded

    {ens snip}

    Hi Ti help,

    I am experiencing exactly the same problems as described in this thread:

    The update text file from brqwizard refers to menus that do not exist. (I have installed v 2.5.7)

    I cannot see the "bottom left" version message you suggested above

    I can not update the USB to GPIO via bqwizard nor via the other "USB-to-GPIO firmware loader" tool

    Generally: I do not seem to get connection (but the green led is on).

    Q1: Where are the bin files to update the USB to GPIO so it can work with the PL114?

    Q2: How to finish update of the USB-to-GPIO as well as PL114 EVM?

    Note: This Bqwizard software is crashing awfully frequently, BTW.